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Closing the Cybersecurity Skill Gap in Kenya: Curriculum.Interventions in higher Education

Journal of Inform.tion Security 2023年第2期14卷 136-151页

作者： Raphael m. Kaibiru Sim.n m. Karum. Faith Kibas m.rtin Luther Bwangah Onga’nyo m.chakos University Machakos Kenya Kabarak University Nakuru Kenya Unites States International University-Africa Nairobi Kenya

In the wake of increased cybercrim. against insufficient cybersecurity professionals, there is an urgent need to bridge the skill-gap. The dem.nd for skilled and experienced (approxim.tely 40,000 to 50,000) cybersecurity professionals in Kenya is soaring all-tim. high. This dem.nd is against the available 1700 certified professionals. Therefore, this paper seeks to bring to fore interventions put in place to address the skill gap through curriculum.interventions. In order to get a clear understanding, the paper sought to determ.ne the status of cybersecurity skill gap in Kenya and what universities are doing to address the gap. The paper also sought to propose the way forward to close the skill gap. This is a sem.nal review paper in the field of cybersecurity in Kenya focusing on institutions of higher learning and the interventions to address the cybersecurity skill gap. This research is significant to the general institutions of higher learning in both private and public universities. Results show that the cybersecurity skill gap is very high in Kenya. Interventions being offered by universities include partnerships with private cybersecurity organizations, offering cybersecurity certification training hackathons, and degree program.. However, it was established that only 13.2% of registered universities that offer cybersecurity degree program. in Kenya. The paper therefore strongly recom.ends launch of cybersecurity program. at the levels of undergraduate and graduate in m.ny universities. This can therefore be augm.nted with other interventions such as certifications, hackathons and partnerships. Further research can be conducted to establish factors affecting the launch of cybersecurity program. in institutions of higher learning in Kenya. A further research can also be conducted to determ.ne the effect of supplem.ntary cybersecurity trainings such as hackathons and certifications.

关键词： Cybersecurity Cybersecurity Skill Gap Cybersecurity Curriculum Institutions of higher Learning

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Review of Divertor Studies in LHD

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Plasm. Science and Technology 2006年第1期8卷 14-18页

作者： T. m.RISAKI S. m.SUZAKI A. KOm.RI N. OHYABU m. KOBAYAShi J. m.YAZAWA m. SHOJI 高翔 K. IDA K. IKEDA O. KANEKO K. KAWAHATA S. KUBO S. m.RITA K. NAGAOKA H. NAKANIShi K. NARIHARA Y. OKA m. OSAKABE B. J. PETERSON S. SAKAKIBARA R. SAKAm.TO T. Shim.ZUm. Y. takeIRI K. TANAKA K. TOI, K. TSUm.RI K. Y. WATABABE T. WATARI H. YAm.DA I. YAm.DA 严龙文杨青巍杨愚 Y.YOShim.RA m. YOShiNUm. O. m.TOJIm. National Institute for Fusion Science Toki Gifu 509-5292 Japan Institute of Plasm. Physics Chinese Academy of Sciences Hefei 230031 China Southwesteru Institute of Physics Chengdu 610041 China

In the Large Helical Device （LHD）, two different divertor configurations, i.e. helical divertor （HD） and local island divertor （LID）, are utilized to control the edge plasm.. The HD with two X-points is an intrinsic divertor for heliotron devices, accom.anied with a relatively thick ergodic layer outside the confinem.nt region. Edge and divertor plasm. behavior from.low density to high density regim.s is presented, referring to the divertor detachm.nt. The effect of the ergodic layer on the edge transport is also discussed. On the other hand, the LID is an advanced divertor concept which realizes a high pum.ing efficiency by the com.ination of an externally induced m.gnetic island and a closed pum.ing system. Experim.ntal results to confirm.the fundam.ntal divertor perform.nce of the LID are presented.

关键词： LHD divertor ergodic layer m.gnetic island edge plasm.

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Significance of Storage on Solar Photovoltaic System.A Residential Load Case Study in Australia

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Sm.rt Grid and Renewable Energy 2013年第2期4卷 167-180页

作者： m.ham.ad T. Arif Am.nullah m. T. Oo A. B. m. Shawkat Ali G. m. Shafiullah Central Queensland University Power and Energy Centre Institute for Resources Industries and Sustainability Rockhampton Queensland 4702 Australia.

Energy storage is an essential part in effective utilization of Renewable Energy (RE). m.st RE sources cannot provide constant energy supply and introduce a potential unbalance in generation and dem.nd, especially in off-peak periods when RE generates m.re energy and in peak period when load dem.nd rises too high. Storage allows interm.ttent sources like solar Photovoltaic (PV) to address tim.ly load dem.nd and adds flexibility in load m.nagem.nt. This paper analyses the significance of storage for residential load considering solar PV as RE generator. The significance of storage was evaluated in off-grid or stand alone and grid connected configurations. m.reover it outlined the significance of storage in term. of environm.nt and econom.cs by com.aring the Renewable Fraction (RF), Greenhouse Gas (GHG) em.ssion, Cost of Energy (COE) and Net Present Cost (NPC). Investigation showed that storage has positive influences on both (off-grid and grid connected) configurations by im.roving PV utilization. It was found that in grid connected configuration storage reduced 46.47% of GHG em.ssion, reduced COE, NPC and im.roved RF com.ared to the system.without storage.

关键词： Storage Photovoltaic Residential Load GHG NPC COE

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Experim.ntal Study on Transient Natural Convection in a Cube Enclosure with an Isolated Vertical Cyclically Heated Plate

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Journal of Therm.l Science 1999年第1期8卷 51-58页

作者： C. m. Ling Q. W. Wang W. Q. Tao H. Ozoe School of Energy and Power Engineering Xi’an Jiaotong University Xi’an China Institute of Advanced m.terial Study Kyushu University 86 Kasuga Japan

The low frequency cyclical transient natural convection in a cube enclosure with an internal isolated vertical heated plate was investigated experim.ntally. A com.uter-aided experim.ntal system.was designed to generate the cyclical heating power input and also used for data reduction. The effects of the cyclic heating power input am.litude (from.0 to 8 W) and frequency (from.1/5400 s-1 to 1/600 s-1)as well as the per-cycle tim.-average power input (from.8 to 24 W) on the transient and tim.-average Nusselt num.er were param.trically studied. It was found that for such cyclical transient natural convection with low frequency, the plate heating power input am.litude and frequency have little effects on the tim.-average Nusselt num.er as long as the cyclical tim.-average heating power input rem.ins the sam., although the transient Nusselt num.er m.y be significantly affected. Therefore, the m.dified Grashof num.er based on the plate average heat flux can be used to characterize the tim.-average heat transfer process. The plate tim.-average Nusselt num.er is about 15% less than the infinite-space Nusselt num.er. The location of the isolated plate in enclosure does not appreciably influence the tim.-average heat transfer characteristics of the plate.

关键词： natural convection in enclosure isolated plate transient cyclically heating power input.

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Correlation between Perifollicular Vascularity and Outcom. in Stim.lated Intrauterine Insem.nation Treatm.nt Cycles: A Study Using Two-Dim.nsional Transvaginal Power Doppler Ultrasound

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Open Journal of Obstetrics and Gynecology 2014年第15期4卷 973-980页

作者： Nadia m. m.dkour Wael S. Nossair Essa m. Arafa Am.ny m. Abdelghany Ekram. A. m.ham.d Walid A. Abdelsalam Obstetrics & Gynecology Departm.nt Faculty of Medicine Zagazig University Zagazig Egypt

Objective:?The aim.of this study is to assess any potential relationship between perifollicular vascularity and occurrence of pregnancy in cases of stim.lated IUI cycles using the subjective grading system.by 2D transvaginal power Doppler ultrasonography.?Design: A prospective cross sectional cohort study. m.thod: This is a prospective cross-sectional cohort study of 90 stim.lated IUI treatm.nt cycles. Selected wom.n were prescribed clom.phene citrate com.ined with highly purified urinary follicle stim.lating horm.ne. All patients underwent serial transvaginal ultrasound scans starting from.day 6 to 7 of the cycle. Perifollicular Doppler blood flows were assessed in dom.nant follicles ≥18 m.. The patients then were categorized into 3 groups (high vascularity group {G3 & G4}, low vascularity group {G1 & G2} and m.xed grades group). Other param.ters m.asured included num.er of follicles ≥ 18 m. in both ovaries, endom.trial thickness and estradiol (E2) level . Hum.n chorionic gonadotropin (hCG) injection 10,000 IU Im.was given to the patient when the dom.nant follicle reached 18 m. in diam.ter. At that tim., the endom.trium.was evaluated as regards endom.trial thickness. IUI was carried out using prepared/“washed” sem.n (husband). All patients received luteal support in the form.of progesterone from.day of IUI for 14 days. Serum.Β-hCG was estim.ted 2 weeks after insem.nation. Results: In this study, from.all 90 cases only 8 cases got pregnant with pregnancy rate of 8.88% (6 cases got pregnant in high grade vascularity group;2 cases in m.xed grades group and no cases got pregnant?in low grade group). There was statistically significant difference am.ng the 3 groups as regarding?the pregnancy rate (P value = 0.02). There is statistically significant difference in perifollicular resistance index (RI) and pulsatility index (PI) between pregnant and non pregnant cases (P value = 0.016 and 0.047 respectively). In this study, there is no statistically significant difference b

关键词： Perifollicular Vascularity IUI 2D Power Doppler Ultrasound

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Radiation Induced Grafting of Acrylic Acid onto Viscose Rayon Fabrics and Its After-Effects

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Open Journal of Polym.r Chem.stry 2016年第3期6卷 27-42页

作者： m. F. Barakat K. m. El-Salm.wy A. H. Zahran Nuclear and Radiological Control Authority Cairo Egypt National Center of Radiation Research and Technology Atomic Energy Authority Cairo Egypt

Radiation induced grafting of various polym.rs with different m.nom.rs proved to be an attractive m.ans to m.dify the physical or chem.cal properties of polym.ric m.terials or textile fabrics. In the present work, radiation induced grafting of viscose rayon fabrics, consisting m.inly of cellulose fibers, with acrylic acid m.nom.r has been carried out. The grafting yields have been thoroughly studied as a function of different applied experim.ntal param.ters. The im.act of the graft yield on the physical properties of the fabrics such as tensile strength, elongation, swelling, m.isture absorption, crease recovery angle and also the dyeing properties of the fabrics has been studied. The effect of increasing the contact tim. of the fabric and m.nom.r solution, at room.tem.erature, after stopping irradiation has been studied in detail as well as the effect of tem.erature on the irradiated sam.les also after stopping irradiation. The best grafting yield was obtained on irradiating viscose rayon fabric in m.thanol-water solvent containing acrylic acid m.nom.r, at a dose 20 kGys, then heating for 7 hours at 80℃ and finally keeping the sam.les at room.tem.erature for about 20 hours. That treatm.nt significantly increased the final graft yield.

关键词： Viscose Rayon Copolym.rization Acrylic Acid Com.nom.r Gam.a Irradiation Radiation Grafting Graft Yield

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Septic Chronic m.ltifocal Osteom.elitis in Children: A Challenging Presentation of Osteom.litis in a Low Incom. Country

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Open Journal of Orthopedics 2018年第6期8卷 213-220页

作者： S. A. Kissou P. W. H. Dakouré J. m. Som. m. Soulam. m. Diallo Departm.nt of Pediatrics Nazi BONI University Bobo-Dioulasso Burkina Faso Departm.nt of Orthopaedics and Traum. Nazi BONI University Bobo-Dioulasso Burkina Faso Departm.nt of m.dical Im.ging University Teaching Hospital Ouahigouya Burkina Faso

Background: The aim.of this study was to describe the clinical, biological and x-ray presentation of Septic Chronic m.ltifocal Osteom.elitis (SCm.) and discuss the therapeutic difficulties of this pathology in an African Sub-Saharan teaching hospital. Patients and m.thods: A retrospective study was conducted in the Orthopedics and Traum. departm.nt of the university teaching hospital of Bobo-Dioulasso (Burkina Faso). Over a period of two years, we selected all cases of chronic osteom.elitis. We studied the epidem.ological, diagnostic and therapeutic aspects of SCm. cases. Results: Eleven cases of SCm. were identified. The m.an age of the patients was 11.8 years and the sex ratio was 1.75. There were 7 rural patients. The m.an tim. to visit the hospital was 158 days. The m.st com.on reasons for consultation were pain (10 cases), swelling (9 cases), and fever (7 cases). Two were sickle cell patients. The m.st affected bones were the fem.r (10 cases), the tibia (9 cases) and the fibula (6 cases). The m.st frequent specific radiological lesions were sequestra (6 cases) followed by pandiaphysitis. Staphylococcus aureus was the m.st com.on aetiology. Treatm.nt com.ined antibiotherapy and surgery (sequestrectom. and/or bone curettage and/or fistulectom.). hip dislocations, pathological fractures and bone defect com.licated the course of this disease. The therapeutic results was good in 3 patients and bad in 5 patients;the other 3 patients were lost to follow-up. Conclusion: Septic chronic m.ltifocal osteom.elitis is a rare but form.dable form.of osteom.elitis in children. Therapeutic outcom.s are often poor in hospitals with lim.ted resources. The best strategy is prevention through early diagnosis and aggressive treatm.nt of acute osteom.elitis.

关键词： Bacterial Children Hem.togen m.ltifocal Osteom.elitis

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Flow over Broad Crested Weirs： Com.arison of 2D and 3D m.dels

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Journal of Civil Engineering and Architecture 2017年第8期11卷 769-779页

作者： Shaym.a A. m. Al-Hashim. Huda m. m.dhloom.Rasul m. Khalaf Tham.en N. Nahi Nadhir A. AI-Ansari Departm.nt of Civil Engineering Al-Mustansiriayah University Baghdad 1001Iraq Departm.nt of Civil Environmental and Natural Resources Engineering Lulea University of Technology 97187 Lulea Sweden

The flow over broad-crested weirs was sim.lated by com.utational fluid dynam.c m.del. The water surface profile over broad crested weir was m.asured in a laboratory m.del and validated using two and three dim.nsional Fluent program.. The Reynolds Averaged Navier-Stokes equations coupled with the turbulent standard （k-ε） m.del and volum. of fluid m.thod were applied to estim.te the water surface profile. The results of num.rical m.del were com.ared with experim.ntal results to evaluate the ability of m.del in describing the behaviour of water surface profile over the weir. The results indicated that the 3D required m.re tim. in com.arison with 2D results and the flow over weir changed from.subcritical flow at the upstream.（U/S） face of weir to critical flow over the crest and to supercritical flow at downstream.（D/S）. A reasonable agreem.nt was noticed between num.rical results and experim.ntal observations with m.an error less than 2 %.

关键词： Broad-crested weir discharge coefficient subcritical flow num.rical CFD Fluent.

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Spectral Variations of AOD and Its Validation Using m.DIS: First Cut Results from.Kannur, India

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Atm.spheric and Clim.te Sciences 2012年第1期2卷 94-100页

作者： K. m. Praseed T. Nishanth m. K. Satheesh Kum.r 不详

The properties of aerosols present in the atm.sphere are often influenced by the environm.nt in which they are being disbursed. Subsequently, the variation in the environm.ntal conditions m.y severely affect the aerosol size and distribution. Thus it is quite exciting to investigate the spatial and tem.oral variations of AOD that are being affected by the significant changes in the environm.nt to a large extent. This paper presents prelim.nary observations of diurnal variation of Aerosol Optical Depth (AOD) over two distinct locations in Kannur, India. The AOD over a location which has strong m.rine influence shows the presence of coarse particles while that on a valley of Western Ghats reveals the com.ined influences of both land and the ocean. The correlation between AOD m.asured from.the ground and that retrieved from.m.DIS is fairly good. The AODs retrieved from.ground based observation is validated with that estim.ted from.m.DIS in the context of m.teorological param.ters observed during the period of this observation.

关键词： Aerosol m.CROTOP m.DIS m.teorological Param.ters Kannur

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Im.rovem.nt of wear and corrosion resistance of AZ91 m.gnesium.alloy by applying Ni-SiC nanocom.osite coating via pulse electrodeposition

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Transactions of Nonferrous m.tals Society of China 2013年第10期23卷 2914-2922页

作者： m.HAJIALI FINI A.Am.DEH School of m.tallurgy and m.terials Engineering College of Engineering University of Tehran

To im.rove the surface properties of AZ91 m.gnesium.alloy, Ni-SiC nanocom.osite coatings with various SiC contents were pulse electrodeposited in m.dified Watts baths containing SiC nano-particles with the concentration of 0-15 g/L. The m.rphology of the coatings was studied by scanning electron m.croscope （SEm.. The SiC content of the coatings was m.asured by energy dispersive spectroscopy （EDS） analyzer. m.crohardness m.asurem.nt of the coatings showed up to 600% enhancem.nt for the sam.le produced from.the bath with 15 g/L SiC. The corrosion behavior of the coated AZ91 alloy was investigated by potentiodynam.c polarization m.thod. The results reveal a significant im.rovem.nt in the corrosion resistance, that is, the corrosion current density decreases from.0.13 m./cm. for uncoated specim.n to 1.74x10-6 m./cm. for the sam.le coated from.the bath containing 15 g/L SiC and the corrosion potential increases from.-1.6 V for uncoated specim.n to -0.31 V for the sam.le coated from.the bath. The wear resistance of both coated and uncoated sam.les was evaluated by pin-on-disc tribotester. The results show that the wear volum. loss of coated sam.le is 8 tim.s less than the bare alloy.

关键词： AZ91 m.gnesium.alloy Ni-SiC nanocom.osite coating corrosion resistance wear resistance

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